Thomas c



(No Manel.)

T. C. FLEMING.

DEVICE POR, GONVBRTING MoTloN. No. 322,815.

Patented July 21,- 1885.

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THOMAS C. FLEMING, OF AYER, NEBRASKA.

DEVICE FOR CONVERTING MOTION.

SPECIFICATION forming pari'. of Letters Patent No. 322,815, dated J'uly21, 1885.

Application filed May 1, IESS. (No model.) I

To @all whom t may concern.'

Be it known that I, T. C. FLEMING, a citizen of the United States,residing at Ayer, in the county of Adams and State of Nebraska, haveinvented certain new and useful Improvements in Devices for ConvertingMotion, of which the following is a specification, reference being hadtherein to the accompanying drawings.

My invention relates to a-device for converting direct into rotarymotion; and it con'- sists in certain details of construction andarrangement and operation of the several parts, as will be hereinaftermore fully set forth in the specification, and pointed out in theaccompanying drawings, in which- Figure' l is a plan view of my device,and Fig. 2 a section on the line x x, Fig. 1.

In devices of this kind it is requisite that all dead points beovercome; otherwise there is stoppage and loss of power and liability toaccidents to the primary motor and to the converting mechanism.Moreover, the converter should be quick to respond to the movement ofthe ypower-transmitter, so as to avoid unusual friction. To this end vmyde vice consists in a suitable rest or support, A, provided withtransverse lateral guides B, forming bearings for the movableguide-heads H H of the pitman E and wrist C. The wrist C, suitablyjournaled in support A, receives the transmitted motion from the primarymotor, and is connected by means of the rod or arm D to the pitman E,which in turn is keyed to the shaft N of bandpulley L. This shaft hassuitable bearings, M, in the supporting-bed. At the angular point of thepitman a pin, e, is inserted, and projects on either side so as toenga-ge with the ends of the slotted draw-head F. Rods I, havingcoilsprings G, pass into the inner ends of the draw-head F, and passthrough the movable guide-heads H H. Pins h in these rods form stops forthe movements of the rods.

The operation of the device is as follows: As the wrist-lever C is movedin the direction of arrow 1 it gives movement to the pitman E, (throughthe intervention of rod D,) and this draws back the pitman until the armE approaches the horizontal, as shown in dotted lines, Fig. 2. As thisapproach is made, the pin e begins to push against head F and move therods I forward, thus compressing spring G. The instant the movement ofthe wrist is completed the arm E' tends to go 55 downward, as shown infull lines, Fig. 2, and this action is accelerated by the reflex actionof the springs. Now, when the wristis movedback in the direction of thearrow 2, (shown in dotted lines, Fig. 2,) then the reverse movement 6oof the heads F and H takes place, and the pin e commences to hold back,and the pins h on the rods press against the head-bar H, againcompressing the spring, which reacts to bring the head F back. Thus itwill be seen that, as the wrist approaches the farthest extremity, thepin in the knee of the pitman begins to hold back, while the upper endof the knee still moves forward until the wrist is driven past thecenter. Then the return 7o motion of the pitman is free todraw the wristto the nearest extremity, passing the dead-4 point in the same manner..

My device is applicable forvfarmers use where windmills are at hand forprime niotors, and the direct power thus obtained is converted intorotary motion for use in cornshellers, fan-blowers, feed-cutters,wood-saws, l and the various applications for use in this v manner. 8o

Having thus described my invention,whatI claim as new, and desire tosecure by Letters Patent, is-

1. In a device for converting direct into rotary motion, thecombination, with the vibrating frame, of a wrist-lever which receivesmovement from the direct power, and the pitman which converts suchmotion into a rotary movement, substantially as and for the purpose setforth. 9o

2. In a device for converting motion, the combination, with the wristand pitman, of a vibrating frame reacted upon by compressed springsplaced between the heads of the vibrating frame and between the wristand pit- 9 5 man, substantially as and for the purpose set forth.

3. In a device for converting motion, a vibrating frame consisting ofthe movable head F, moved by a pin ou the pitman, and the Ico Intestimony whereof I affix my signature in 1o presence of two witnesses.

THoMAs C. FLEMING.

i Vtnesses:

A. HCRAMER, J'No. J. RAYMALERE.

